How to get value from link_to_remote's :with paramenter?

Rails
1

Hello,

I have following code in my view

#plan_discount
%table
%tr
%td
=“Discount Code”
%td
=text_field_tag ‘discount_code’
%td
=link_to_remote “Apply”, :update => “result”, :url => {
:action => “discount_code”}, :with => “‘discount=’+
$(discount_code).value”

#result
//Here I display processed value based on value entered in
“discount_code” //textfield

When user enter the value in discount code textfield, I process it and
display it in “result” div

My problem is that in controllers

How can I get value of “discount” which is passed as a parameter in
above link_to_remote function

def discount_code
discount_code = params[:discount] # I tried this , but get nil value
puts discount_code
render :text => discount_code
end

What is the right way to do this?

Thanks,
Vikas

2

Hi Vikas G.

Either

“‘discount=’+$(‘discount_code’).value”
Or

“‘discount=’+$F(‘discount_code’)”

Sijo

3

Sijo Kg wrote:

Hi Vikas G.

Either

“‘discount=’+$(‘discount_code’).value”
Or

“‘discount=’+$F(‘discount_code’)”

Sijo

Thanks Sijo,

But I don’t have problem related to this.

My question is that how i access “discount” parameter value in
controller.

using discount_value = params[:discount] gives me nil.

How can i access paramter value passed in “:with”

Thanks again,
Vikas

4

I think the correct is :
link_to_remote “Apply”, :update => “result”, :url => {
:action => “discount_code”}, :with => “discount=$
(discount_code).value”

On Sep 19, 10:46 am, Vikas G. [email protected]

5

sorry it’s :
:with=>“‘discount=’+$(‘discount_code’).value” .
You missed single quote in discount_code :slight_smile:

On Sep 19, 10:46 am, Vikas G. [email protected]

6

Hi Is it solved? Once more try exact this Cannot see anyother error.

link_to_remote “Apply”, :update => “result”, :url => {:action =>
“discount_code”}, :with => “‘discount=’+$(‘discount_code’).value”

And in controller params[:discount]

Sijo

7

Quy Doan wrote:

sorry it’s :
:with=>“‘discount=’+$(‘discount_code’).value” .
You missed single quote in discount_code :slight_smile:

On Sep 19, 10:46�am, Vikas G. [email protected]

Thanks,

but how can i pass multiple parameters through :with option in
link_to_remote

for example

=link_to_remote “Apply”, :update => “plan_discount”, :url => { :action
=> “discount_code”}, :with=>“‘discount=’+$(‘discount_code’).value
&‘discount2=’+$(‘discount_code2’).value”

This is not working.

Where I’m doing wrong.

8

Hi Vikas

:with =>"‘discount=’+ escape($(‘discount_code’).value) + ‘&discount2=’ +
escape($(‘discount_code2’).value)"

Sijo

9

Hi

  It should work.And what error you get? Also paste the code for

textfields discount_code and tariff_plan_id

Sijo

10

Sijo Kg wrote:

Hi Vikas

:with =>"‘discount=’+ escape($(‘discount_code’).value) + ‘&discount2=’ +
escape($(‘discount_code2’).value)"

Sijo

Hello Sijo

Thanks, but it is not working.

For only one parameter it is working fine, but not for more than one
parameter.
There is syntax error, but i tried it various ways, failed.

Following is my link_to_remote function

=link_to_remote “Apply”, :update => “plan_discount”, :url => { :action
=> “discount_code”}, :with =>"‘discount=’+
escape($(‘discount_code’).value) + ‘&tariff_plan=’ +
escape($(‘tariff_plan_id’).value)"

HTML generated from above is

Apply

11

Sijo Kg wrote:

Hi

  It should work.And what error you get? Also paste the code for

textfields discount_code and tariff_plan_id

Sijo

“tariff_plan_id” is a redio button and “discount_code” is a textfield

%input{:type=>‘radio’, :name=>‘tariff_plan_id’,
:value=>"#{plan[‘service’][‘name’].downcase}_#{plan[‘payment_term’][‘name’].downcase}"}

=text_field_tag ‘discount_code’

=link_to_remote “Apply”, :update => “plan_discount”, :url => { :action
=> “discount_code”}, :with =>"‘discount=’+
escape($(‘discount_code’).value) + ‘&tariff_plan=’+
escape($(‘tariff_plan_id’).value)"

When I click on “Apply” link, nothing happens.

Thanks,
Vikas

12

H Vikas

%input{:type=>‘radio’, :name=>‘tariff_plan_id’,
:value=>"#{plan[‘service’][‘name’].downcase}_#{plan[‘payment_term’][‘name’].downcase}"}

Give also give an id to this id=>‘tariff_plan_id’

Sijo

13

Sijo Kg wrote:

H Vikas

%input{:type=>‘radio’, :name=>‘tariff_plan_id’,
:value=>"#{plan[‘service’][‘name’].downcase}_#{plan[‘payment_term’][‘name’].downcase}"}

Give also give an id to this id=>‘tariff_plan_id’

Sijo

Yes, by giving id to radio button it works.

But I have 5 radio_button with group “tariff_plan_id”. If i give same id
to all of them, there is problem of having same id for 5 radio buttons.
and I think this is not correct.

  • service[‘all_plans’].each do |plan|
    %input{:type=>‘radio’, :id =>
    “tariff_plan_id_#{plan[‘service’][‘name’].downcase}#{plan[‘payment_term’][‘name’].downcase}",
    :name=>‘tariff_plan_id’,
    :value=>"#{plan[‘service’][‘name’].downcase}    #{plan[‘payment_term’][‘name’].downcase}”}

here for each plan one radio button is generated.
So another problem arises that how i know that which radio button is
selected from “tariff_plan_id” group.

if consider 5 radio buttons are there (may be increased in feature)
then I have to specify

tariff_plan_id_1
tariff_plan_id_2
tariff_plan_id_3
tariff_plan_id_4
tariff_plan_id_5

Thanks,
Vikas